The ability of maize roots to grow through compacted soil is not dependent on the amount of roots formed

نویسندگان

چکیده

Mechanical impedance is a primary constraint to root growth and hence the capture of soil resources. To investigate whether rooting depth length under mechanical caused by compaction are correlated we evaluated 12 maize lines at two field sites. distinguish between lateral nodal roots, roots were sorted into different diameter classes. Coarse had diameters >1 mm represent axes. Greater proportions coarse on compacted plots found both sites however results driven genotypic variation. Soil reduced total (in all classes) compared non-compacted plots. Root distribution was influenced with greater densities closer surface. not related each other impeded conditions. some genotypes became obstructed plots, while capable growing through impeding reached deeper strata resulting in differential profile. On observed similar depths but contrasting lengths. The ability grow soils therefore dependent solely formed system.

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ژورنال

عنوان ژورنال: Field Crops Research

سال: 2021

ISSN: ['0378-4290', '1872-6852']

DOI: https://doi.org/10.1016/j.fcr.2020.108013